Crimping-machine



(No Model.)

O. M. KIMBALL.

GRIMPING MACHINE.

I No. 331,795 Patented Decj lgfi.

iUNlITlED dramas -FArnn'r @rrrcn.

CHARLES M. KIMBALL, OF BRADFORD, MAiiSAGHUSETTS.

CRlMPlNG=WlACHlNE SPECIFICATION forming part of Letters Patent 1-To.331,795, dated December 8,1885.

Serial No. 86,984. (No model.)

To all whom it may concern:

Be it known that I, OrLinLizs )I. KIMBALL, of Bradford, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Crimping -Machines, of which the following is aspccification.

My invention relates to an improvement in machines for crimping boot and shoe vamps, whereby I am enabled to crimp vamps of different forms in the same machine by simply reversing the motion of the rotating formers without changing any part of the machine.

The invention consists of a series of radial blades or formers, which are fixed in a wheel, each former having its opposite edges of a different shape or outline. These formers are caused to rotate and pass between two jaws or plates, so as to carry the vamps always in one direction and deliver them from the machine without reversing the motion of the formers when aform l'orashoe vamp only is required. XVhen a dillercnt form for boot-Vamps is re quired, the motion of the wheel carrying the formers is reversed, the operation in both cases being continuous in one direction.

In order to insure the crimping of the entire vamp when the leather is thicker or thinner at dillerent parts, I employ a series of plugs or plungers having their inner ends projecting slightly beyond the inner surfaces of the plates or jaws, the plugs being forced outwardly by springs, and so disposed that every part of the vamp will come in contact with said plugs.

Referring to the accompanying drawings, Figure l is a side elevation of a machine embodying my invention. Fig. 2 is a vertical transverse section on the line a: .90 of Fig. 1. Fig. 3 is an elevation showing the formers and one of the plates or jaws as attached to the frame. Fig. l. is a view of one of the plates or jaws. Fig. .5 is a detail view of spring and plug. Fig. 6 is a top view of the jaws, the

wheel and formers being removed.

A is a bed or base supporting the iron frame of the machine. The frame is made in two parts, each consisting of the horizontal portion F, the perpendicular portion F, and the braces F, as seen in Fig. 1. Between the two frames the frame are secured together by bolts L at the ends K K K.

D D D D are four formers, composed ofmetal plates attached to or forming a part of the wheel 13 and the hub H. The two edges of each former have a different contour, the edge marked d being designed for crimping the vamps of shoes, and that marked (1 for crimping boot-van1ps. On the inner side of each portion of the frame and forming a part of the same is attached a semicircular plate, E, the upper edges, 0 e, of which correspond in contour or outline with the edges (Z cl of the formers D and serve as jaws in receiving the vamp.

The wheel B is rotated by means of a pinion, G, operated by any power applied to the crank G or otherwise.

In the plates E E are holes f,through which project slightly beyond the inner surface of the plates the plugs or pl angers f f, so as to play freely. (See Fig. 2.) The outer ends of the plugs f are enlarged, so as to form shoulders bearing against the outer sides of the plates E, to limit the play of the plugs. The plugs are held in place by means of springs g, which are attached at their opposite ends to screws i, having nuts h and bearing against the outer surface of the plates The springs are held in place by su'iall bars or rods G. (Sec Figs. 2 and 5.) The holes and plugs are so arranged in the plates as to cause the projecting ends of the plugs to come in contact with every portion of the vamp, so as to allow for dili'erence of thickness in different parts of the vamp. The out on the screw i, against which the end of the spring g bears, admits of the adjustment of the spring to a greater or less tension in bearing upon the plug, as required. The distance between the plates EE may be adjusted to accommodate Vamps of different thicknesses by the bolts L, as desired.

In operation, when a shoe-vamp is to be crimped it is laid lengthwise over the jaws c c. The wheel B is then rotated in the direction indicated by the arrow 1, causing each former or plate I) to force the vamp down between the jaws c and between the plates E E until it passes up between the jaws e e on is a cogged wheel, B, journaled in the upper the opposite side, and is there removed from portions, F, of the frame.

The two parts of l the machine.

A vamp is placed under the edged of each plate D, the operation of crimp ing being continuous in one direction.

When a boot-vamp is to be crimped, it is laid upon the jaws e e on the opposite side, the motion of the wheel B is then reverscd,as indicated by the arrow 2, and the edges d of the plates or formers D force the vamp down between the jawsc eand theplates E E, and up through the jaws e e, where they are removed from the machine.

It will thus be seen that I am enabled to crimp both a shoe and a boot vamp in one and the same machine without changing any of its parts, the change from one to the other being effected by simply reversing the rotation of the wheel and formers, and by forcing the Vamps through and between the plates the surface over which they pass is greatly extended and the Vamps are more effectually crimped.

I do not claim rotating trees and pressurejaws for crimping boots and shoes, as I am aware that such are not new; but

What I do claim as my invention is- 1. In a crimping-machine, the semicircular plates E E, the upper edges, 0 e, of which are made in outline, the one for crimping boots and the other for crimping shoes, in combination with the formers D,having edges (1 d, corresponding, respectively, with those of the plates E E, whereby the formers as they are rotated in one direction will crimp a boot, and when rotated in the opposite direction will crimp a shoe, substantially as set forth.

2. In a crimping-machine, the plugs or plungers ff, held in position by adjustingsprings, in combination with the perforated plates E E, substantially as and for the purpose set forth. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES M. KIMBALL.

Witnesses:

J os. H. ADAMS, E. PLANTA. 

